Novoferm garage door opener shows E14 and the integrated light does not function correctly.

Safety first: Disconnect mains power before changing bulbs or accessing the light holder.

Steps to try:

• Check bulb type: Ensure you are using the bulb type and wattage specified by Novoferm. Replace any non‑approved LED or high‑wattage lamps.
• Inspect light holder: Remove the cover and check the lamp holder for signs of heat damage, corrosion, or loose contacts.
• Test without bulb: Remove the bulb and power up. If E14 clears, the bulb or holder may be shorted. Try a new, correct bulb.

If E14 persists with a correct bulb and intact holder, the light control circuit on the PCB is likely damaged. The control board may need replacement.